Why not build entirely blind-friendly computers?
They would use much less power since they wouldn't need a screen at all. Therefore, they could probably be made quite portable.
Navigation could be tacile and/or auditory (some combination of noises and vibrations).
Typing accomplished by voice recognition software or keyboards with Braille labels.
"Reading" of text would be accomplished by a robo-voice screen reader, or, even better, phonemic speech software. Or...!
How about a
Dynamic Braille-reading padImagine a plate about the size of a book. Braille dots actually raise out of the plate (like whack-a-moles). You run your fingers along the Braille plate. When you get to the end of the plate, you push the "page down" button.
Somebody get me a patent application.